Cenozoic forearc gabbros from the northern zone of the Eastern Pontides Orogenic Belt, NE Turkey: Implications for slab window magmatism and convergent margin tectonics


EYÜBOĞLU Y., Dudas F. O., Santosh M., Zhu D., Yi K., Chatterjee N., ...More

GONDWANA RESEARCH, vol.33, pp.160-189, 2016 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 33
  • Publication Date: 2016
  • Doi Number: 10.1016/j.gr.2015.07.006
  • Journal Name: GONDWANA RESEARCH
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.160-189
  • Keywords: Gabbro, Forearc, Slab window, Convergent margin, Cenozoic, Eastern Mediterranean, POSTCOLLISIONAL VOLCANIC-ROCKS, PB ZIRCON CHRONOLOGY, RIDGE SUBDUCTION, CALC-ALKALINE, GEODYNAMIC EVOLUTION, WHOLE-ROCK, GEOCHEMISTRY, MANTLE, PETROGENESIS, ORIGIN
  • Karadeniz Technical University Affiliated: Yes

Abstract

The Eastern Pontides Orogenic Belt represents one of the best examples of fossil convergent margins in the eastern Mediterranean region. However, the origin and geodynamic setting of the late Mesozoic-Cenozoic magmatism in this belt remain controversial due to lack of systematic geological, geochemical and chronological data. The general consensus is that the late Mesozoic-Cenozoic igneous activity is related to northward subduction of oceanic lithosphere in the late Mesozoic and following collision between Tauride and Pontide blocks in the early Cenozoic Here we present a comprehensive study focusing on the origin and geodynamic setting of gabbro bodies exposed along a narrow zone, parallel to the southeastern coast of the eastern Black Sea basin, in the Northern Zone of the Eastern Pontides Orogenic Belt.